// Wrapper around chrome.runtime.sendMessage for native host communication.

/** Send a typed message to the native host and return a Promise resolving to the response. */
function sendToNative(type, payload) {
  return new Promise((resolve) => {
    chrome.runtime.sendMessage(
      { target: 'holesail-native', action: 'send', payload: { type, payload } },
      (response) => {
        void chrome.runtime.lastError;
        resolve(response);
      }
    );
  });
}

/**
 * Like sendToNative but resolves with a normalized result (checks chrome.runtime.lastError).
 * @returns {Promise<{ ok: true, data: object } | { ok: false, error: string }>}
 */
function sendToNativeResult(type, payload) {
  return new Promise((resolve) => {
    chrome.runtime.sendMessage(
      { target: 'holesail-native', action: 'send', payload: { type, payload } },
      (response) => {
        const lastErr = chrome.runtime.lastError;
        if (lastErr) {
          resolve({ ok: false, error: lastErr.message || 'Extension messaging failed' });
          return;
        }
        if (!response) {
          resolve({ ok: false, error: 'No response from extension' });
          return;
        }
        if (response.error != null && response.ok !== true) {
          resolve({ ok: false, error: String(response.error) });
          return;
        }
        if (response.ok === false) {
          resolve({ ok: false, error: response.error ? String(response.error) : 'Request failed' });
          return;
        }
        resolve({ ok: true, data: response });
      }
    );
  });
}

/**
 * Show a toast for a failed native call (user-initiated actions).
 * @param {string} [context] - Short label, e.g. "SSH"
 * @param {string} [error] - Error message
 */
function notifyNativeFailure(context, error) {
  const msg = error && String(error).trim() ? String(error) : 'Something went wrong';
  const prefix = context && String(context).trim() ? String(context).trim() + ': ' : '';
  if (typeof showToast === 'function') showToast(prefix + msg, 'error');
}

/** Fetch the full extension state from the background service worker. */
async function fetchState() {
  return new Promise((resolve) => {
    chrome.runtime.sendMessage(
      { target: 'holesail-native', action: 'getState' },
      (response) => {
        if (chrome.runtime.lastError) {
          log('fetchState error:', chrome.runtime.lastError.message);
          resolve(null);
          return;
        }
        if (response && response.ok) resolve(response.state);
        else resolve(null);
      }
    );
  });
}